A study of the tribe gesnerieae, with a revision of gesneria (gesneriaceae: gesnerioideae) - Skog, Laurence E., 1943- (City of Washington: Smithsonian Institution Press, 1976)
Includes index.
p. 171-175.
Keywords: Gesneria; Rhytidophyllum; Pheidonocarpa; Botany -- West Indies